Hey everyone I just picked up a 08 Roush f150 stage 3 and seems like it's not shifting correctly . Like at a roll if it's in 2nd and you get into it it won't shift down just kinda Boggs Down it eventually gets up to speed but feels like a turd. Just curious if this is normal or do I. Need a tune

 

If it needs a tune, your fuel Tim's should be off too. That is how I figure mine out